National Center for Health Statistics (DHHS/PHS), Hyattsville, MD., Ventura, Stephanie J., Martin, Joyce A., Curtin, Sally C., Menacker, Fay, and Hamilton, Brady E.
This report presents data on U.S. births using information from the birth certificates of the 3.96 million births in 1999. Data are presented for maternal demographics (age, live-birth order, race, Hispanic origin, marital status, and educational attainment); maternal characteristics (medical risk factors, weight gain, tobacco use, and alcohol use); pregnant women's medical care utilization (prenatal care, obstetric procedures, labor and delivery complications, birth attendant, and delivery method); and infant characteristics (gestation, birthweight, Apgar score, abnormal conditions, congenital anomalies, and multiple births). Birth and fertility rates are presented by age, live-birth order, race, Hispanic origin, and marital status. Data by mother's state of residence, month and day of birth, sex ratio, and father's age are included. Trends in fertility patterns and maternal and infant characteristics are described. Birth and fertility rates changed little in 1999. Teenage birth rates fell slightly. Rates for women age 20-24 years declined slightly. Rates for women in their late 20s and 30s rose slightly. Number of births to unmarried women, birth rate, and percentage of births to unmarried women rose about 1 percent each. Improvements in prenatal care utilization continued. Percentage of low birthweight was 7.6 percent. Preterm births were 11.8 percent. (SM)